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Preparation and Properties of High Strength, Transparency, and UV-shielding Bacterial Cellulose Composite Film
Received:June 11, 2023  
DOI：10.11980/j.issn.0254-508X.2023.10.001
Key Words:bacterial cellulose  transparent  hydrophobic  UV-shielding
Fund Project:海口市科技计划重点科技计划项目（2021-030）。
Author NameAffiliationPostcode
HE Yingzi State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
ZHAO Xuan State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
LIU Tanglong State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
HUANG Xiaofang State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
PENG Xinwen State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
ZHONG Chunyan Hainan Yeguo Foods Co.， Ltd.， Haikou， Hainan Province， 570311 570311
ZHONG Linxin* State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
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Abstract:In this study， BC was used as the raw material， polyvinyl alcohol （PVA）/BC composite films with high transparency were prepared according to refractive index matching principle. Furthermore， by combining with epoxy resin （EP）， the haze of the composite film reduced due to the decreased surface roughness， the PVA/BC/EP composite film with high strength， high transparency and hydrophobicity was prepared. The results showed that the PAV/BC/EP composite film had smoother surface and denser structure than the pure BC film with low haze and high light transmittance up to 90%. The tensile strength was up to 177.1 MPa due to the interaction between PVA， BC， and EP， and the surface hydrophobicity and hardness had been significantly improved. Further introduction of carbon quantum dots could impart the composite films with good UV-shielding property. This work provided a new possibility for the application of multifunctional film-based materials with high strength， high transparency and UV-shielding.
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